Hybrid organic-inorganic nanomaterials: ligand effects

Abstract

\n CdSe nanocrystals were modified with small ligand \nmolecules in order to render them compatible with a conducting polymer \nmatrix. Modified NCs were characterized by NMR, optical spectroscopy, \nelectrochemistry. Hybrid materials based on such modified nanocrystals and a \nconducting polymer (MDMO-PPV, P3HT or P3OT) were prepared, characterized, \nand tested in photovoltaic devices. Modified NCs quench the polymer PL in \nsolutions as well as in films. Photovoltaic devices display modest power \nconversion efficiencies mainly due to phase segregation.\n\n \n